. . "The superclass Tetrapoda (Ancient Greek \u03C4\u03B5\u03C4\u03C1\u03B1\u03C0\u03CC\u03B4\u03B7s tetrapod\u0113s, \"four-footed\"), or the tetrapods /\u02C8t\u025Btr\u0259p\u0252d/, comprises the first four-limbed vertebrates and their descendants, including the living and extinct amphibians, reptiles, mammals, birds, and some extinct fish. Tetrapods evolved from the lobe-finned fishes around 390 million years ago in the middle Devonian Period, with modern tetrapod groups having appeared by the late Devonian, 367.5 million years ago."@en . . . . "Tetrapods"@en . . . . .